What about Dinosaurs, ending quote from wikipedia.
EndingThe series finale of Dinosaurs depicts the irresponsible actions of the dinosaurs toward their environment, and the ensuing Ice Age which leads to their demise. The episode "Changing Nature" begins with the failure of a swarm of Bunch Beetles to show up and devour a form of creeper vine. Charlene discovers that WESAYSO has constructed a wax fruit factory on the swampland that serves as the Bunch Beetles' breeding grounds, causing the extinction of the species (save for one male named Stan). Fearing a public relations fiasco more than any environmental threat, WESAYSO quickly puts Earl in charge of an attempt to destroy the vines, which have grown out of control without the beetles to keep them in check. Earl proposes spraying the planet with defoliant, which causes the destruction of the vines, but also kills off all plant life on the planet. Richfield assumes that the creation of clouds will bring rain, allowing the plants to grow back, and so decides to create clouds by dropping bombs in the planet's volcanoes to cause eruptions and cloud cover. The dark clouds instead cause global cooling, in the form of a gigantic cloudcover (simulating the effects of what the viewer would recognize as nuclear winter) that scientists estimate would take "tens of thousands of years" to dissipate. Richfield dismisses this as a cold snap and states that WESAYSO is currently producing blankets, heaters, and hot cocoa to help guarantee the dinosaurs' survival. Later, Earl apologizes to his family and Stan for his actions. The episode ends with Howard Handupme as he finishes his broadcast grimly saying "Good Night... Goodbye" to the audience.
Yeah, that's totally appropriate for children
>_____>;;